Primitive chondrites, un-molten stony meteorites, are believed to be the building blocks of the Earth. Because terrestrial planets have experienced chemical differentiation in the core, mantle, and hydrosphere, the elemental ...
Earth Sciences
Jul 1, 2019
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6
We think of oceans as being stable and permanent. However, they move at about the same speed as your fingernails grow. Geoscientists at CEED, University of Oslo have found a novel way of mapping the Earth's ancient oceans.
Earth Sciences
Nov 10, 2017
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16
Earth's history should include 'pre-plate tectonic' and 'plate tectonic' phases beginning less than a billion years ago, according to a team of geoscientists in the journal Geology.
Earth Sciences
May 11, 2017
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38
The composition and temperature of the Earth's interior are fundamental for understanding the Earth's interior and dynamics. Because it's impossible to directly access most areas of the Earth's interior, the combination of ...
Earth Sciences
Jun 8, 2016
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14
Carbonates are the most important carbon reservoirs on the planet. But what role do they play in the Earth's interior? How do they react to conditions in the Earth's mantle? These are the questions being asked by a group ...
Earth Sciences
Feb 16, 2015
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11
The Moon's status as a "dry" rock in space has long been questioned. Competing theories abound as to the source of the H20 in the lunar soil, including delivery of water to the Moon by comets.
Space Exploration
Mar 26, 2014
1
0
Earth's mantle is a solid layer that undergoes slow, continuous convective motion. But how do these rocks deform, thus making such motion possible, given that minerals such as olivine (the main constituent of the upper mantle) ...
Earth Sciences
Mar 7, 2014
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0
They are difficult to reach, have hardly been studied scientifically, and their existence does not fit into current geological models: the Marie Byrd Seamounts off the coast of Antarctica present many riddles to volcanologists. ...
Earth Sciences
Oct 17, 2013
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0
(Phys.org) —Semi-precious minerals found in a bucket of sand from an island nation have cracked open a clue to the drifting movements and break-up of ancient Earth's massive continental plates.
Earth Sciences
May 16, 2013
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0
A Harvard scientist is challenging long-held scientific views about the geochemical makeup of the Earth’s mantle, and whether the massive collision that formed the moon affected the chemical composition of the planet ...
Earth Sciences
Jun 27, 2012
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